.page-faq {
  --pf-line: var(--edge);
  --pf-panel: var(--ink-panel);
  overflow-x: clip;
  padding-block: clamp(16px, 3vw, 28px) 0;
}

.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .breadcrumb {
  margin-bottom: clamp(14px, 2.4vw, 22px);
}

/* 首屏 */
.page-faq .pf-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 48px);
  align-items: center;
  padding-block: clamp(10px, 2vw, 20px) clamp(28px, 5vw, 56px);
}

.page-faq .pf-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 7.4vw, 64px);
  line-height: 1.06;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-faq .pf-hero__lead {
  margin: 18px 0 0;
  max-width: 54ch;
  color: var(--mist);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.9;
}

.page-faq .pf-hot {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(18px, 3vw, 26px);
}

.page-faq .pf-hot a {
  padding: 8px 12px;
  border: 2px solid var(--edge);
  border-radius: 2px;
  background: rgba(20, 17, 31, 0.72);
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.page-faq .pf-hot a:hover {
  border-color: var(--cyan);
  background: rgba(45, 245, 212, 0.1);
  color: var(--paper);
}

.page-faq .pf-hero__media {
  aspect-ratio: 3 / 2;
  border: 2px solid var(--edge);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

.page-faq .pf-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

/* 章节 */
.page-faq .pf-section {
  padding-block: clamp(30px, 5vw, 58px);
}

.page-faq .pf-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: clamp(12px, 2vw, 22px);
  row-gap: 10px;
  align-items: start;
  margin-bottom: clamp(18px, 3vw, 30px);
  padding-bottom: 14px;
  border-bottom: 2px solid var(--edge);
}

.page-faq .pf-head__num {
  font-family: var(--font-mono);
  font-size: clamp(34px, 7vw, 62px);
  line-height: 0.85;
  letter-spacing: 0.02em;
  color: transparent;
  -webkit-text-stroke: 2px var(--violet);
}

.page-faq .pf-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 3vw, 32px);
  line-height: 1.2;
  color: var(--paper);
}

.page-faq .pf-head p {
  grid-column: 1 / -1;
  margin: 0;
  max-width: 64ch;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.85;
}

/* 排查步骤 */
.page-faq .pf-steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin: 0 0 clamp(20px, 3vw, 30px);
  padding: 0;
  list-style: none;
}

.page-faq .pf-step {
  padding: 14px 16px;
  border: 2px solid var(--edge);
  background: var(--pf-panel);
  box-shadow: var(--shadow-hard);
}

.page-faq .pf-step b {
  display: block;
  margin-bottom: 6px;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.14em;
}

.page-faq .pf-step p {
  margin: 0;
  color: var(--mist);
  font-size: 14px;
  line-height: 1.75;
}

/* 问答折叠 */
.page-faq .pf-qa {
  display: grid;
  gap: 10px;
}

.page-faq .pf-qa--tight {
  margin-top: clamp(18px, 3vw, 26px);
}

.page-faq .pf-q {
  border: 2px solid var(--edge);
  border-radius: 2px;
  background: var(--pf-panel);
  transition: border-color 0.22s ease, box-shadow 0.22s ease;
}

.page-faq .pf-q[open] {
  border-color: var(--violet);
  box-shadow: var(--shadow-hard);
}

.page-faq .pf-q summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

.page-faq .pf-q summary::-webkit-details-marker {
  display: none;
}

.page-faq .pf-q__n {
  color: var(--violet);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
}

.page-faq .pf-q[open] .pf-q__n {
  color: var(--cyan);
}

.page-faq .pf-q__t {
  margin: 0;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--paper);
}

.page-faq .pf-q__ico {
  width: 11px;
  height: 11px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform 0.26s ease;
}

.page-faq .pf-q[open] .pf-q__ico {
  transform: rotate(-135deg);
}

.page-faq .pf-q__body {
  padding: 0 16px 16px;
}

.page-faq .pf-q__body p {
  margin: 0;
  max-width: 70ch;
  color: var(--mist);
  font-size: 14.5px;
  line-height: 1.85;
}

.page-faq .pf-q__body p + p {
  margin-top: 8px;
}

/* 表格 */
.page-faq .pf-table-wrap {
  margin-bottom: clamp(20px, 3vw, 30px);
  border: 2px solid var(--edge);
  background: var(--pf-panel);
  box-shadow: var(--shadow-hard);
  overflow-x: auto;
}

.page-faq .pf-table-wrap--flat {
  margin-bottom: 0;
  box-shadow: none;
}

.page-faq .pf-table {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .pf-table th,
.page-faq .pf-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--edge);
  text-align: left;
  vertical-align: top;
}

.page-faq .pf-table thead th {
  background: rgba(58, 28, 140, 0.28);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 400;
  letter-spacing: 0.1em;
}

.page-faq .pf-table tbody th {
  color: var(--paper);
  font-weight: 700;
  white-space: normal;
}

.page-faq .pf-table td {
  color: var(--mist);
  line-height: 1.75;
}

.page-faq .pf-table tbody tr:last-child th,
.page-faq .pf-table tbody tr:last-child td {
  border-bottom: 0;
}

/* 三维筛选卡片 */
.page-faq .pf-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-faq .pf-card {
  padding: 16px 18px;
  border: 2px solid var(--edge);
  border-left: 6px solid var(--violet);
  background: var(--pf-panel);
}

.page-faq .pf-card:nth-child(2) {
  border-left-color: var(--cyan);
}

.page-faq .pf-card:nth-child(3) {
  border-left-color: var(--orange);
}

.page-faq .pf-card__k {
  color: var(--orange);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
}

.page-faq .pf-card h3 {
  margin: 6px 0 8px;
  font-size: 16px;
  color: var(--paper);
}

.page-faq .pf-card p {
  margin: 0;
  color: var(--mist);
  font-size: 14px;
  line-height: 1.8;
}

/* 时间轴 */
.page-faq .pf-tl {
  margin: 0 0 clamp(20px, 3vw, 30px);
  padding: 0 0 0 22px;
  border-left: 2px solid var(--edge);
  list-style: none;
}

.page-faq .pf-tl li {
  position: relative;
  padding: 0 0 22px 8px;
}

.page-faq .pf-tl li::before {
  content: "";
  position: absolute;
  left: -29px;
  top: 6px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 3px rgba(255, 138, 61, 0.18);
}

.page-faq .pf-tl li:last-child {
  padding-bottom: 0;
}

.page-faq .pf-tl__time {
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 400;
  letter-spacing: 0.08em;
  font-variant-numeric: tabular-nums;
  color: var(--orange);
}

.page-faq .pf-tl h3 {
  margin: 4px 0 6px;
  font-size: 16px;
  color: var(--paper);
}

.page-faq .pf-tl p {
  margin: 0;
  max-width: 62ch;
  color: var(--mist);
  font-size: 14px;
  line-height: 1.8;
}

/* 联系客服 */
.page-faq .pf-contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-faq .pf-prep {
  padding: clamp(10px, 1.6vw, 14px);
  border: 2px solid var(--edge);
  background: var(--pf-panel);
}

.page-faq .pf-mailcard {
  padding: clamp(16px, 3vw, 24px);
  border: 2px solid var(--cyan);
  background: linear-gradient(160deg, rgba(45, 245, 212, 0.11), rgba(58, 28, 140, 0.4) 72%);
  box-shadow: var(--shadow-hard);
}

.page-faq .pf-mailcard__label {
  display: block;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
}

.page-faq .pf-mailcard__mail {
  display: block;
  margin: 10px 0 6px;
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.4vw, 21px);
  line-height: 1.5;
  word-break: break-all;
}

.page-faq .pf-mailcard__note {
  margin: 10px 0 0;
  color: var(--mist);
  font-size: 13.5px;
  line-height: 1.85;
}

.page-faq .pf-mailcard__phone {
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 16px;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.page-faq .pf-contact-media {
  border: 2px solid var(--edge);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

.page-faq .pf-contact-media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* 相关入口 */
.page-faq .pf-next {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  padding-block: clamp(26px, 4vw, 48px);
}

.page-faq .pf-next a {
  display: grid;
  gap: 6px;
  padding: 14px 16px;
  border: 2px solid var(--edge);
  background: var(--pf-panel);
  text-decoration: none;
  transition: border-color 0.22s ease, transform 0.22s ease, box-shadow 0.22s ease;
}

.page-faq .pf-next a:hover {
  border-color: var(--violet);
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-hard);
}

.page-faq .pf-next__k {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
}

.page-faq .pf-next__t {
  color: var(--paper);
  font-size: 15px;
  font-weight: 700;
}

.page-faq .pf-next__d {
  color: var(--mist);
  font-size: 13.5px;
  line-height: 1.7;
}

@media (min-width: 760px) {
  .page-faq .pf-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
  }

  .page-faq .pf-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .pf-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .pf-contact-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .pf-next {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-faq .pf-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .pf-next {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .pf-q summary {
    padding: 16px 20px;
  }

  .page-faq .pf-q__body {
    padding: 0 20px 18px;
  }
}